@hayhor I think they probably didn't see a meaningful use for them and they just reverted to a previous map state or removed / disabled the whole system through specifically implemented parameters, to save time. If you remember, there were challenges, timers, etc. tied to those vertical lifts.
Also, it's possible that those lifts were the same asset as used by Horizon, unlike Octane's town takeover jumppads or the ziplines that are similar to Path's ultimate. This case would require a new component to be created so that it doesn't get affected by eventual changes to the legend's tactical.
To make the changes above and get the gravity lifts back is not a very difficult task, but takes valuable dev time from much more important issues. We can agree that they had a lot in the last few days and let's not forget that they have advertised significant changes to Kings Canyon coming in Season 8 as well.